The Datrex Emergency Drinking Water 4oz / 125 ML Bags are convenient and disposable water packets suitable for various outdoor activities such as backpacking, hunting, camping, and hiking. These white bags are made of aluminum and each weighs 4.6 oz, making them easy to transport. With a shelf life of 12/28, this 64 pack ensures you have access to clean drinking water in emergency situations while on the go in the United States.